<template>
    <div class="login_container">
       <div class="login_box">
           <div class="avatar_box">
               <img src="../assets/logo.png" alt="logo"  >
           </div>
           <el-form :model="loginForm" ref="loginFormRef" :rules="loginFormRules"  class="login_form">
               <el-form-item  prop="username">
                   <el-input v-model='loginForm.username' prefix-icon="el-icon-user-solid" ></el-input>
               </el-form-item>
                <el-form-item prop="password" >
                   <el-input v-model='loginForm.password' type="password"  prefix-icon="el-icon-lock" ></el-input>
               </el-form-item>
                <el-form-item  class= 'btns' >
                   <el-button type="primary" @click="submitLogin">登录</el-button>
                    <el-button type="info" @click="resetLoginForm" >重置</el-button>
               </el-form-item>
           </el-form>
       </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
      // 这是登录表单的数据
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 表单验证规则
      loginFormRules: {
        // 验证用户名
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { require: true, min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    submitLogin () {
    //   console.log(this)
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) this.$message.error('登录失败')
        else {
          window.sessionStorage.setItem('token', res.data.token)
          this.$message.success('登录成功')
          this.$router.push('/home')
        }
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
    background: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left:50%;
    top:50%;
    transform: translate(-50%,-50%) ;
    .avatar_box{
        height: 130px;
        width: 130px;
        border:1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 5px #ddd;
        position: absolute;
        left:50%;
        transform: translate(-50%,-50%) ;
        background-color: #fff;
        img{
            width: 100%;
            height: 100%;
            border-radius:50% ;
            background-color: #eee;
        }
    }
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content: flex-end;
}
</style>
